All the comunication between clients, the proxy server, owncloud and document server is encrypted using letsencrypt SSL certificates.

I have a stupid problem integrating OwnCloud and OnlyOffice Document Server using the integration app, if I set the secret key in OwnCloud I see the subject error , without the secret key in owncloud and setting the inbox, outbox and browser to false in token.enable.request at local.json file all works fine